MILAN (Reuters) - Fiat Chrysler (FCA) has asked the Italian government for a state-backed three-year loan, to help the automaker pay suppliers and continue its investment plan in the country, UILM union said on Saturday.FCA confirmed to UILM that it had asked Rome for a loan to be paid back in three years, UILM leaders Rocco Palombella and Gianluca Ficco said in a statement."FCA's request is for..